THE SOUTH AFRICAN PAINT INDUSTRY TRAINING INSTITUTE
SAPMA PAINT TECHNOLOGY COURSE
MODULE 9 - POWDER COATINGS APPLICATION

This module provides the student with a solid grounding in the basic principles of Powder Technology. It covers the terminology used, the basic raw materials used, the powder manufacturing processes, application techniques and health and safety.

The study material is presented in an easily assimilated manner with little in the way of pure chemistry or mathematics, as at this stage the emphasis lies in the teaching of important concepts.

The study material comprises written text, divided into 26 Lessons.

There are six practical exercises in this Module, each designed to illustrate a particular concept or section of the theory, and this "hands on" approach aids the less experienced student. At the same time, the student is taught the value of scientific discipline, and gains valuable experience in written communications.

WHO SHOULD STUDY THIS MODULE ?

As this Module is presented at a basic level, and in a manner that can be understood by non technical people, it is suitable for a broad spectrum of employees in the Powder Coating industry: i.e, those engaged in:

  • Production
  • Quality control
  • Research and Development
  • Technical Service,
  • Sales,
  • Buying,
  • Personnel and Training,
  • Raw Material Sales,
  • Powder Coating Application,
  • Specification
  • Inspection

PREREQUISITES FOR THE MODULE

A Senior Certificate or higher qualification, with a knowledge of basic chemistry and physics. In addition, a pass in Module 01 is required. It would be very worthwhile for the student to have completed Module 2 - Paint Application, although it is not felt to be mandatory.

SUMMARY OF SYLLABUS

A. INTRODUCTION TO POWDER COATINGS

Historical perspectives
Terminology
Basic Materials
Manufacturing outline
Methods of application
Usage of powder coatings


B. PARTICLE TECHNOLOGY

Materials
Finished powder

C. MANUFACTURE OF POWDERS

Weighing and pre-blending
Theory of compounding and dispersion
Dispersion plant
Grinding and classification
Plant layout and economics
Health and safety
Production controls
Thermoplastics

D. APPLICATION OF POWDER COATINGS

Pretreatment
Electrostatics
Application plant
Spray guns
Spray booths and powder recovery
Stoving and handling
Fluidised beds
Other methods
Health and safety
Production control

ASSESSMENTS

4 multiple choice tests
6 written reports on the practical work
2 hour written examination at end of course

PASS MARK

A minimum of 50% in each of the three modes of assessment is required for a pass.
A merit pass is awarded for an overall mark of 80% or above, and a distinction is awarded for an overall mark of 90% and above.

DURATION AND TIME INVOLVED

The Module takes 18 weeks to complete. The average student would spend the following time on the various aspects :-

Theoretical study - 50 hours
Practical exercises - 10 hours
Report writing - 12 hours
This averages out to 4 hours per week


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